How many people has climate change killed already?
The researchers estimate that higher temperatures driven by greenhouse gas emissions caused more than half the heat-related deaths in several countries, including Thailand, Peru and the Philippines. On average, climate change was at fault for 37 percent of heat-related deaths. The world has only warmed around 2 degrees Fahrenheit so far, but that’s already enough to kill roughly 100,000 people every year, if you apply this paper’s estimate to the entire world.